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Yes, there is a pad that extends forward from under the valve cover, sometimes it is obscured by an accessory (alternator, air conditioner compressor, etc.). Here's a pic...

thanks alot.that way i know exactly what is is,even where it came from.thanks

06-25-2008 02:56 PM

XNTRCI-T

Yes, there is a pad that extends forward from under the valve cover, sometimes it is obscured by an accessory (alternator, air conditioner compressor, etc.). Here's a pic...

06-25-2008 02:51 PM

millertime85

Quote:

Originally Posted by XNTRCI-T

Besides the partial VIN, there should be another code stamped on the front of the passenger side block deck. It shoud be a letter followed by four numbers and either two or three more letters. When you get it, look it up here.

ill check that,its up top by timing cover right?

06-25-2008 10:45 AM

XNTRCI-T

Besides the partial VIN, there should be another code stamped on the front of the passenger side block deck. It shoud be a letter followed by four numbers and either two or three more letters. When you get it, look it up here.

06-24-2008 06:53 PM

oldbogie

Quote:

Originally Posted by millertime85

this is also what he is claiming so its a 357c.i. w/ 305 heads has a unknown cam w/ a carb jetted to 1,000(dont know a lot about carbs so not sure if im saying that right) w/ a decent intake.stock 350 or 305 headers,stock not true dual exhaust,and stock air cleaner making around 425hp and unknown torque.

Well this is where the logic seems to break down a little.

A forty overbore would be 357, sounds OK.

I seriously doubt that even professionally ported 305 heads would support 425 hp on anything. But the cam plays big time on this. It takes a big stick to drag 425 ponies out of a 350 and that size cam ain't much fun to live with on the street.

I don't know what jetted to 1000 on the carb means. I'm guessing he means cubic feet per minute of air flow, which has nothing to do with jets and everything with venturi and throttle bore size. For 425 hp 750 to 800 cfm would be sufficient.

Intakes make or break an engine, I'd need to know what intake.

Stock air cleaners are not as restrictive as the purveyors of aftermarket filters would have you believe. A K&N element inside a factory can tied to a cold air source outside the engine room is very effective.

Guessing this has an automatic and with the 305 heads, headers bigger than 1 and 5/8s wouldn't gain anything useful and would probably cost a lot of bottom end torque.

Single exhaust isn't necessarily bad, but for 425 hp it's gonna take some big pipe like at least 3 inches.

Does this beast run? Building a fire in it is the best way to get a sense about the cam which is at the heart of the matter. This could be one nasty SOB or a piece of junk, you'll have to sort that out. But except for folks sometimes not understanding what they're talking about, this sounds like it could be a good 1980's era rod.

Bogie

06-24-2008 06:34 PM

millertime85

this is also what he is claiming so its a 357c.i. w/ 305 heads has a unknown cam w/ a carb jetted to 1,000(dont know a lot about carbs so not sure if im saying that right) w/ a decent intake.stock 350 or 305 headers,stock not true dual exhaust,and stock air cleaner making around 425hp and unknown torque.seems like a lot from what its sounds but would you believe it or not? gonna see dyno numbers first

06-24-2008 06:27 PM

oldbogie

Quote:

Originally Posted by millertime85

So with all that i have found,everything is pointing to it being a 350 would you say???ill just have to pull the oil pan to check if its a 2 or 4 bolt.

Yep I'd say so. Back in the 1980s and even yet today the low buck way to overcome the large chamber low compression SMOG heads was to put a pair (usually reworked) of small chamber 305 heads on. Not as effective as todays heads, but with the right porting and some standard 350 size valves would work quite well.

Bogie

06-24-2008 06:22 PM

millertime85

So with all that i have found,everything is pointing to it being a 350 would you say???ill just have to pull the oil pan to check if its a 2 or 4 bolt.

He says its a SB 350 bored .40 over-makes it a 357 w/ high compression 305 heads.he said it was a 85 block.so i cant check the heads cause they will come back as a 305.but at least i know its not the stock 305 block.but how can i make sure it deff. is a 350 w/o a doubt???

You beat me too it, I just pulled MorTec into Excel did search and combine and dumped it to word, here it is for 350 blocks:

He says its a SB 350 bored .40 over-makes it a 357 w/ high compression 305 heads.he said it was a 85 block.so i cant check the heads cause they will come back as a 305.but at least i know its not the stock 305 block.but how can i make sure it deff. is a 350 w/o a doubt???

06-24-2008 05:42 PM

oldbogie

Quote:

Originally Posted by millertime85

Its suppose to be a SB 350 in a 85 monte carlo.it looks identical like a stock 305.I just wanna make sure.suppose to be a 1985 350 block

Engine casting number is on the back block drivers side, they will be different betrween 305 and 350 but there are many to choose from.

Car VIN will be stamped on a pad just ahead of the rightside cylinder head. Again there are many to choose from and you'll have to get these, then look 'em up.